Re: [meteorite-list] Meteorite On Line PRINT catalog now available ((ad)
I all, The 14th annual Tucson Meteorite Auction on-line catalog Is now numbered as per the auction and can be seen at: http://michaelbloodmeteorites.com/AuctionTucson2013.html has a PRINT edition with small photos at: http://michaelbloodmeteorites.com/AuctionTucson2013PRINT.html Has a PRINT edition with full sized photos at: http://michaelbloodmeteorites.com/AuctionTucson2013LGPrint.html This is the final week to place absentee bids (Last chance is This coming Saturday - you can try later, but no guarantees). See ya all at the Show! Michael __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorite Picture of the Day
Amazing piece Paul, Zagami is a very underpriced Martian fall, as rare as it gets. I have some great pieces which will be on display at the Tucson show. Zagami is becoming impossible to get ahold of, the main mass has been cut down as far as Bob want's to go, so I highly doubt any more will be coming up anytime soon. Michael Farmer Sent from my iPad On Jan 29, 2013, at 12:00 AM, valpar...@aol.com wrote: Today's Meteorite Picture of the Day: Zagami Contributed by: Paul Swartz http://www.tucsonmeteorites.com/mpod.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] NWA 7397 correction
Since my pieces were bought from the very same people who sold the original mass, and they have more, I am pretty confident that they are selling me the same thing:). I am sorry that more material comes out, it tends to happen in NWA. It is a story we have seen played out for more than a decade. Once a valuable meteorite is found in the desert and sold, the nomads scour the area and often more shows up. Look at the current Black Beauty saga for further information. Michael Farmer Sent from my iPhone On Jan 28, 2013, at 11:22 PM, Sean T. Murray s...@bellsouth.net wrote: [Posting on behalf of Dave Gheesling, who is traveling...] A Tucson dealer recently posted an email to the list and on Facebook an offering of small specimens of NWA 7397. However, backplate.net owns the entire mass of NWA 7397—a single specimen covered with fusion crust that weighed 2130 grams prior to being cut. To date backplate.net has not sold or exchanged any material. A recent find of smaller, putatively paired stones has been made, and while a pairing seems probable, to the best of our knowledge none of that material has been formally classified and confirmed. Regardless, such material cannot be marketed as NWA 7397. See www.backplate.net for images of NWA 7397. Post-Tucson we will post a small number of extraordinary complete slices available for sale—as well as a number of stellar partial slices that will be priced competitively to the small incomplete stones that are purportedly from the same event. Look forward to seeing everyone in Tucson soon... All the best, Dave [C/O Sean Murray] __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] (AD) ... New CK4(prov) and HOW ending soon on Ebay ...
Dear all … another trial to get the message to the list (now as Text-Mail!) ... and here comes my Ad in the list … as a short notice for one of the last possibility to get some nice slices or fragments of low TKW NWA :-) 1. of the NWA 7310(prov) 2.65g slice or 0.63g nicely fresh crusted fragment … a wonderful CK4 type of material (my favorite right now!!) … CK4 starting around (55€/g) a must for or CK-collectors ! 2. and also still available my newly classified Howardite NWA 7546 very low TKW … got a huge 4.8g slice, a 3.25g slice and a smaller 2.5g slice to go (price average starting around 20€/g) … I love it ! http://www.ebay.com/sch/orgamet/m.html?_nkw=_armrs=1_from=_ipg=_trksid=p3686 Few other slices and small fragments or micros, nanos, picos are still available for lovers as well … please contact me off-list, Have some nice time in Tuscon - wish I could be there !!! Orgamet ! __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] [IMCA] Conception Junction Inspection Recommendation
Hello Russ, List Thanks for the heads up on Conception Junction. I'll have to call home and have someone check on mine. I hope it's not falling apart! Typically, I don't collect irons, meso's or pallasites because of the high humidity that accompanies a Michigan summer. I've had bad experience wit Admire and Campo. My Brahin endcut has experienced a very slow decay. Ghubarra and SaU 001 are two stones that have shown significant signs of deterioration. Oddly, my silicated Campo is in excellent shape, showing no oxidation. Has it been annealed from impact? Sincerely, Larry Atkins IMCA # 1941 Ebay alienrockfarm -Original Message- From: Russ Finney cura...@meteoritecollector.org To: imca i...@imcamail.de Sent: Tue, Jan 29, 2013 10:08 am Subject: [IMCA] Conception Junction Inspection Recommendation Hello Everyone: This week I finished my annual detailed one-by-one inspection of the specimens in my collection (about 2,800 total specimens). In the summer time I do a similar inspection, but not as detailed. When I checked Conception Junction, which is in a sealed box with silica beads as a desiccant, I noticed some rust forming on the edges. I opened the box and found the specimen to be in pretty bad shape. I am doing the usual recovery steps to salvage what remains, but I wanted to warn others to check their own Conception Junction specimens since this rusting really caught me by surprise, the slice had been looking stable during the last few visual inspections. Other iron/pallasite specimens which required maintenance this time were: Brenham (several specimens are slowly turning to dust) Carlton (minor rust) Campo del Cielo (some bright slices showed rust) Goose Lake (minor rust) Muonionalusta (some rust, no surprise, needs curation) Nantan (some rust, no surprise here either) Pedernales (minor rust) Morasko (minor rust) I also had two stone meteorites which required maintenance: Travis County (a): Monnig specimen, I was surprised that it needed curation Ghubara: one large cut specimen was lightly rusting - is that normal? - my others are fine That was all that required attention during this specimen review. If you have any of these you might check your own collections as well... Looking forward to seeing everyone in Tucson! Best Regards, Russ Finney http://www.meteoritecollector.org __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] When A Planet Behaves Like A Comet (Venus Express)
http://www.esa.int/Our_Activities/Space_Science/When_a_planet_behaves_like_a_comet When a planet behaves like a comet European Space Agency 29 January 2013 ESA's Venus Express has made unique observations of Venus during a period of reduced solar wind pressure, discovering that the planet's ionosphere balloons out like a comet's tail on its nightside. The ionosphere is a region of weakly electrically charged gas high above the main body of a planet's atmosphere. Its shape and density are partly controlled by the internal magnetic field of the planet. For Earth, which has a strong magnetic field, the ionosphere is relatively stable under a range of solar wind conditions. By comparison, Venus does not have its own internal magnetic field and relies instead on interactions with the solar wind to shape its ionosphere. The extent to which this shaping depends on the strength of the solar wind has been controversial, but new results from Venus Express reveal for the first time the effect of a very low solar wind pressure on the ionosphere of an unmagnetised planet. The observations were made in August 2010 when NASA's Stereo-B spacecraft measured a drop in solar wind density to 0.1 particles per cubic centimetre, around 50 times lower than normally observed; this persisted for about 18 hours. As this significantly reduced solar wind hit Venus, Venus Express saw the planet's ionosphere balloon outwards on the planet's downwind nightside, much like the shape of the ion tail seen streaming from a comet under similar conditions. The teardrop-shaped ionosphere began forming within 30-60 minutes after the normal high pressure solar wind diminished. Over two Earth days, it had stretched to at least two Venus radii into space, says Yong Wei of the Max Planck Institute for Solar System Research in Germany, lead author of the new findings. The new observations settle a debate about how the strength of the solar wind affects the way in which ionospheric plasma is transported from the dayside to the nightside of Venus. Usually, this material flows along a thin channel in the ionosphere, but scientists were unsure what happens under low solar wind conditions. Does the flow of plasma particles increase as the channel widens due to the reduced confining pressure, or does it decrease because less force is available to push plasma through the channel? We now finally know that the first effect outweighs the second, and that the ionosphere expands significantly during low solar wind density conditions, says Markus Fraenz, also of the Max Planck Institute and co-author on the paper. A similar effect is also expected to occur around Mars, the other non-magnetised planet in our inner Solar System. We often talk about the effects of solar wind interaction with planetary atmospheres during periods of intense solar activity, but Venus Express has shown us that even when there is a reduced solar wind, the Sun can still significantly influence the environment of our planetary neighbours, adds Hakan Svedhem, ESA's Venus Express project scientist. Notes for editors A teardrop-shaped ionosphere at Venus in tenuous solar wind by Y. Wei et al is published in Planetary and Space Science 73, 2012. For further information, please contact: Markus Bauer ESA Science and Robotic Exploration Communication Officer Tel: +31 71 565 6799 Mob: +31 61 594 3 954 Email: markus.ba...@esa.int Yong Wei Max Planck Institute for Solar System Research E-mail: w...@mps.mpg.de Markus Fraenz Max Planck Institute for Solar System Research E-mail: fra...@mps.mpg.de Tel: +49 555 6979 441 Hakan Svedhem Venus Express Project Scientist Email: h.sved...@esa.int Tel: +31 71 565 3370 __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Lookout Tucson Anne Black is on her way
Anne's SUV is loaded and rolling. Driving out of the Colorado snow and headed for the warmth and sun of Tucson. Griff Parker, Colorado __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Capot Rey Contributed by: Gregor Hoeher http://www.tucsonmeteorites.com/mpod.asp __ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
